Basic GroundworkOkay, we have the base masked and we are ready to do some basic ground work. At this point you are going to need at a minimum whatever vehicle you are going to use and whatever you are going to use for your groundwork. I am using the Sherman, Celluclay, and oil dry. Oil dry is pretty much the same as "kitty Litter" but I think that is copywritten and way more expensive. Sand in a plastic bag will be handy later:

Add some water to the disposable plastic bowl with the Celluclay. It is hard to explain how much water you want to add but it should be about the consistency of heavy dough. Stir it up with a fork. You can always add more water if it is too wet but there is no taking water out.

I always add a good size spoon full of Elmer's (PVA) glue to help the Celluclay stick to the base.

Dump the Celluclay on the base. Notice that I still have the front of the base marked.

Now comes the fun part. First, add some Celluclay to both ends of the base where we put the elevation. Then start spreading the Celluclay with the fork.

It ought to start looking something like this:

Now it is time to make tracks. Tanks don't float, they sink. So need to make tracks, that is track marks. Push your vehicle into the wet ground work to make track marks. If you are using a wheeled vehicle, roll it. In any case you want marks in the ground work where your vehicle has been.

After you have pushed your track marks into the ground work DO NOT LEAVE THE MODEL ON THE WET GROUNDWORK. You will not be able to get off of there without ripping the treads off the tank or lifting the groundwork off the base. Trust me.
So you should end up with something like this:

Last step until the Celluclay sets up is throwing around some of the oil dry. I try to put it where rocks would normally be, towards the bottom of high points where water might wash them...

Picture of the base where I am leaving it until the next step:

As always, if anyone has questions or comments please let me know. Next, painting ground work with no air brush required...
Shaun.